US6064367A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bit expander
Assignee: Sony Corp
•
Filing: 1998-04-23
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Granted: 2000-05-16
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Expires: 2018-04-23
Abstract
Abstract N expansion bits are added to the LSB side of original data of m bits and thereby expanded data of (m+n) bits is obtained. In the case of m≦n, each bit of original data of m bits is repeatedly assigned to the LSB side of original data. In the case of m>n, n bits on the MSB side of the original data of m bits are added to the LSB side of original data. Since the bit values of expansion bits vary corresponding to the values of the original data, a bit expansion can be smoothly performed in the full range.
Inventors
- 👤 Toshio Horioka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 11:38
CPC Classifications
G; G09; G09G; G09G5/00; G09G5/02
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
55 words
A bit expander for adding n expansion bits to original data of m bits and expanding the original data of m bits to data of (m+n) bits, wherein a predetermined number of bits on the MSB side of the original data of m bits are added to the low order side of the original data.
Claim 2
Dependent Claim
55 words
A bit expander for adding n expansion bits to original data of m bits and expanding the original data of m bits to data of (m+n) bits, wherein a predetermined number of bits on the MSB side of the original data of m bits are added to the low order side of the original data.
Claim 3
Dependent Claim
33 words
The bit expander as set forth in claim 1, wherein in the case of m≦n, the bits of the original data are repeatedly added to the low order side of the original data.
Claim 4
Dependent Claim
37 words
The bit expander as set forth in claim 1, wherein in the case of m>n, the n bits on the MSB side of the original data are added to the low order side of the original data.
Claim 5
Dependent Claim
16 words
The bit expander as set forth in claim 1, wherein the original data is graphics data.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2003-05-16 | 2003-11-15 | 2004-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-05-16 | 2007-11-15 | 2008-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-05-16 | 2011-11-15 | 2012-05-16 | $7700.00 | Window Closed / Lapsed |